package jdbc;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

/**
 * 执行关联查询
 */
public class JDBCDemo5 {
    public static void main(String[] args) {
        /*

         */
        try (Connection connection =DBUtil.getConnectiom();
        ){
            Statement statement = connection.createStatement();
            String sql = "SELECT t.name,t.salary,t.title,c.name,c.floor " +
                         "FROM teacher t " +
                         "JOIN class c ON t.id=c.teacher_id " +
                         "WHERE t.name='王克晶' ";
            System.out.println(sql);

            ResultSet rs =statement.executeQuery(sql);
            while(rs.next()){
//                String tName = rs.getString("t.name");
//                int tSalary = rs.getInt("t.salary");
//                String tTitle = rs.getString("t.title");
//                String cName = rs.getString("c.name");
//                int cFloor = rs.getInt("c.floor");
                String tName = rs.getString(1);
                int tSalary = rs.getInt(2);
                String tTitle = rs.getString(3);
                String cName = rs.getString(4);
                int cFloor = rs.getInt(5);
                System.out.println(tName+" "+tSalary +" "+ tTitle +" "+ cName+" "+ cFloor);
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
